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HMC772LC4
v02.0514
AMPLIFIERS - LOW NOISE - SMT
GaAs HEMT MMIC LOW NOISE
AMPLIFIER, 2 - 12 GHz
Typical Applications
Features
This HMC772LC4 is ideal for:
Noise Figure: 1.8 dB
• Wideband Communication Systems
Gain: 15 dB
• Surveillance Systems
Output IP3: +25 dBm
• Point-to-Point Radios
P1dB Output Power: +13 dBm
• Point-to-Multi-Point Radios
50 Ohm Matched Input/Output
• Military & Space
Supply Voltage: +4V @ 45 mA
• Test Instrumentation
24 Lead Ceramic 4x4mm SMT Package: 16mm²
Functional Diagram
General Description
The HMC772LC4 is a GaAs MMIC HEMT Low Noise
Wideband Amplifier which operates between 2 and
12 GHz. The amplifier provides 15 dB of gain, 1.8 dB
noise figure up to 12 GHz and output IP3 of +25 dBm,
while requiring only 45 mA from a +4V supply voltage.
The Psat output power of up to +15 dBm enables the
LNA to function as a LO driver for many of HIttite’s
balanced, I/Q or image reject mixers. The HMC772LC4
also features I/Os that are DC blocked and internally
matched to 50 Ohms, making it ideal for SMT based
high capacity microwave radio applications. The
HMC772LC4 is housed in a RoHS compliant 4x4 mm
QFN leadless ceramic package.
Electrical Specifications, TA = +25° C, Vdd= +4V, Idd = 45 mA*
Parameter
Min.
Frequency Range
Gain
Typ.
Max.
2 - 12
14
Units
GHz
15
dB
Gain Variation over Temperature
0.01
dB / °C
Noise Figure
1.8
Input Return Loss
15
Output Return Loss
15
dB
Output Power for 1 dB Compression
13
dBm
Output Third Order Intercept (IP3)
25
dBm
Supply Current (Idd) (Vdd = 4V, Vgg = -0.2V Typ.)*
45
mA
2.5
dB
dB
* Adjust Vgg between -1 to 0.3V to achieve Idd = 45mA typical.
1
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC772LC4
v02.0514
GaAs HEMT MMIC LOW NOISE
AMPLIFIER, 2 - 12 GHz
Gain vs. Temperature
Noise Figure vs. Temperature
20
NOISE FIGURE (dB)
GAIN (dB)
5
+25 C
+85 C
- 40 C
18
16
14
12
+25 C
+85 C
-40 C
4
3
2
1
10
0
1
3
5
7
9
11
13
15
1
3
5
FREQUENCY (GHz)
0
11
13
15
0
+25 C
+85 C
- 40 C
+25 C
+85 C
- 40 C
-5
RETURN LOSS (dB)
-5
RETURN LOSS (dB)
9
Input Return Loss vs. Temperature
Output Return Loss vs. Temperature
-10
-15
-20
-25
-10
-15
-20
-25
-30
-30
1
3
5
7
9
11
13
15
1
3
5
FREQUENCY (GHz)
16
16
14
14
Psat (dBm)
18
12
11
13
15
13
15
12
+25 C
+85 C
- 40 C
10
+25 C
+85 C
- 40 C
8
9
Output Psat vs. Temperature
18
10
7
FREQUENCY (GHz)
Output P1dB vs. Temperature
P1dB (dBm)
7
FREQUENCY (GHz)
AMPLIFIERS - LOW NOISE - SMT
6
8
6
6
1
3
5
7
9
FREQUENCY (GHz)
11
13
15
1
3
5
7
9
11
FREQUENCY (GHz)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
2
HMC772LC4
v02.0514
GaAs HEMT MMIC LOW NOISE
AMPLIFIER, 2 - 12 GHz
Power Compression @ 12 GHz
Output IP3 vs. Temperature
20
Pout (dBm), GAIN (dB), PAE (%)
28
IP3 (dBm)
26
24
+25 C
+85 C
- 40 C
22
20
3
5
7
9
11
13
15
0
24
-5
21
GAIN (dB), P1dB (dBm)
ISOLATION (dB)
0
+25 C
+85 C
- 40 C
-15
-20
-30
5
7
9
FREQUENCY (GHz)
-5
0
5
11
13
15
8
7
Gain
P1dB
18
6
15
5
12
4
9
3
6
2
3
3
-10
Gain, Noise Figure & Power vs.
Supply Voltage @ 12 GHz
Reverse Isolation vs. Temperature
1
-15
INPUT POWER (dBm)
-25
3
5
FREQUENCY (GHz)
-10
Pout
Gain
PAE
10
-5
-20
18
1
15
Noise Figure
1
0
0
3.5
NOISE FIGURE (dB)
AMPLIFIERS - LOW NOISE - SMT
30
4
4.5
Vdd (V)
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC772LC4
v02.0514
GaAs HEMT MMIC LOW NOISE
AMPLIFIER, 2 - 12 GHz
Drain Bias Voltage
+5V
Drain Bias Current
60 mA
RF Input Power
5 dBm
Gate Bias Voltage
-1 to 0.3 V
Continuous Pdiss (T = 85 °C)
(derate 5.8 mW/°C above 85 °C)
0.55 W
Thermal Resistance
(Channel to ground paddle)
172 °C/W
Channel Temperature
180 °C
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
AMPLIFIERS - LOW NOISE - SMT
Absolute Maximum Ratings
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA.
2. LEAD AND GROUND PADDLE PLATING: GOLD FLASH OVER NICKEL.
3. DIMENSIONS ARE IN INCHES (MILLIMETERS).
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
5. PACKAGE WARP SHALL NOT EXCEED 0.05MM DATUM – C –
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO
PCB RF GROUND.
Package Information
Part Number
Package Body Material
Lead Finish
HMC772LC4
Alumina, White
Gold over Nickel
MSL Rating
MSL3
[1]
Package Marking [2]
H772
XXXX
[1] Max peak reflow temperature of 260 °C
[2] 4-Digit lot number XXXX
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
4
HMC772LC4
v02.0514
GaAs HEMT MMIC LOW NOISE
AMPLIFIER, 2 - 12 GHz
AMPLIFIERS - LOW NOISE - SMT
Pin Descriptions
5
Pin Number
Function
Description
1, 2, 4 - 7, 12 - 15,
17 - 19, 24
GND
These pins and ground paddle
must be connected to RF/DC ground.
3
RFIN
This pin is AC coupled
and matched to 50 Ohms.
8
Vgg
Gate control for amplifier. Please follow “MMIC Amplifier
Biasing Procedure” application note. See application circuit
for required external components.
9
Vdd
Power Supply Voltage for the amplifier. See application circuit
for required external components.
10, 11, 20 - 23
N/C
The pins are not connected internally; however, all data
shown herein was measured with these pins connected to
RF/DC ground externally.
16
RFOUT
This pin is AC coupled
and matched to 50 Ohms.
Interface Schematic
Application Circuit
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC772LC4
v02.0514
GaAs HEMT MMIC LOW NOISE
AMPLIFIER, 2 - 12 GHz
AMPLIFIERS - LOW NOISE - SMT
Evaluation PCB
List of Materials for Evaluation PCB 126359
Item
Description
J1, J2
PCB Mount 2.92mm K-Connector
J3 - J5
DC Pin
C1, C4
100 pF Capacitor, 0402 Pkg.
C2, C5
1000 pF Capacitor, 0603 Pkg.
C3, C6
4.7 µF Capacitor, Tantalum
U1
HMC772LC4 Amplifier
PCB [2]
126357 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350 or Arlon 25FR
[1]
The circuit board used in this application should use
RF circuit design techniques. Signal lines should
have 50 Ohm impedance while the package ground
leads and exposed paddle should be connected
directly to the ground plane similar to that shown.
A sufficient number of via holes should be used to
connect the top and bottom ground planes. The
evaluation board should be mounted to an appropriate heat sink. The evaluation circuit board shown
is available from Hittite upon request.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
6